replace prow build job waiting with github action

.github/workflows/e2e.yml

@@ -35,60 +35,54 @@ on:
       - PROJECT
 
 jobs:
-  wait-until-build-succeeds:
-    runs-on: ubuntu-latest
+  export-info:
+    runs-one: ubuntu-latest
     outputs:
       image-name: ${{ steps.extract-image.outputs.image_name }}
+      git-ref: ${{ steps.extract-image.outputs.git_ref }}
     steps:
-      - uses: actions/checkout@v4
-
-      - name: Wait for the 'pull-eventing-manager-build' job to succeed
-        id: pull-wait-build
-        if: github.event_name == 'pull_request'
-        uses: kyma-project/wait-for-commit-status-action@2b3ffe09af8b6f40e1213d5fb7f91a7bd41ffb20
-        with:
-          context: "pull-eventing-manager-build"
-          commit_ref: "${{ github.event.pull_request.head.sha }}" # Note: 'github.event.pull_request.head.sha' is not same as 'github.sha' on pull requests.
-          timeout: 600000 # 10 minutes in milliseconds
-          # The check interval is kept long otherwise it will exhaust the GitHub rate limit (More info: https://docs.github.com/en/rest/overview/resources-in-the-rest-api?apiVersion=2022-11-28#rate-limiting)
-          check_interval: 60000 # 1 minute in milliseconds
-        env:
-          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
-          GITHUB_OWNER: "${{ github.repository_owner }}"
-          GITHUB_REPO: "eventing-manager"
-
-      - name: Wait for the 'post-eventing-manager-build' job to succeed
-        id: push-wait-build
-        if: github.event_name == 'push'
-        uses: kyma-project/wait-for-commit-status-action@2b3ffe09af8b6f40e1213d5fb7f91a7bd41ffb20
-        with:
-          context: "post-eventing-manager-build"
-          commit_ref: "${{ github.sha }}"
-          timeout: 600000 # 10 minutes in milliseconds
-          # The check interval is kept long otherwise it will exhaust the GitHub rate limit (More info: https://docs.github.com/en/rest/overview/resources-in-the-rest-api?apiVersion=2022-11-28#rate-limiting)
-          check_interval: 60000 # 1 minute in milliseconds
-        env:
-          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
-          GITHUB_OWNER: "${{ github.repository_owner }}"
-          GITHUB_REPO: "eventing-manager"
-
       - name: Extract container image name from build logs (pull)
         id: extract-image
         env:
-          # Refernce: https://docs.github.com/en/actions/learn-github-actions/expressions#example
-          COMMIT_STATUS_JSON: "${{ github.event_name == 'push' && steps.push-wait-build.outputs.json || steps.pull-wait-build.outputs.json }}"
+          GIT_EVENT_NAME: "${{ github.event_name }}"
+          PR_NUMBER: "${{ github.event.number }}"
+          PR_HEAD_SHA: "${{ github.event.pull_request.head.sha }}"
+          HEAD_SHA: "${{ github.sha }}"
+        run: |
+          if [[ $GIT_EVENT_NAME == "pull_request" ]]
+          then
+            echo "exporting info for pull request..."
+            echo "image_name=europe-docker.pkg.dev/kyma-project/dev/eventing-manager:PR-${PR_NUMBER}" >> "$GITHUB_OUTPUT"
+            echo "git_ref=${PR_HEAD_SHA}" >> "$GITHUB_OUTPUT"
+          else
+            echo "exporting info for push..."
+            echo "image_name=europe-docker.pkg.dev/kyma-project/prod/eventing-manager:${HEAD_SHA}" >> "$GITHUB_OUTPUT"
+            echo "git_ref=${HEAD_SHA}" >> "$GITHUB_OUTPUT"
+          fi
+      - name: Print info
+        env:
+          IMAGE_NAME: ${{ steps.extract-image.outputs.image_name }}
+          GIT_REF: ${{ steps.extract-image.outputs.git_ref }}
         run: |
-          ./scripts/extract_image_from_build_logs.sh
-          # export value to job output
-          export IMAGE_NAME="$(cat image.name)"
-          echo "IMAGE_NAME: ${IMAGE_NAME}"
-          echo "image_name=${IMAGE_NAME}" >> "$GITHUB_OUTPUT"
+          echo "IMAGE: $IMAGE_NAME"
+          echo "Git ref: $GIT_REF"
+          
+
+  wait-until-build-succeeds:
+    runs-on: ubuntu-latest
+    needs: export-info
+    uses: "./.github/workflows/wait-build-reusable.yml"
+    with:
+      repository: ${{ github.repository_owner }}/eventing-manager
+      git_ref: ${{ needs.export-info.outputs.git-ref }}
+      git_check_run_name: "build / Build image"
+    secrets: inherit
 
   nats:
     runs-on: ubuntu-latest
-    needs: wait-until-build-succeeds
+    needs: [export-info, wait-until-build-succeeds]
     env:
-      MANAGER_IMAGE: ${{ needs.wait-until-build-succeeds.outputs.image-name }}
+      MANAGER_IMAGE: ${{ needs.export-info.outputs.image-name }}
 
     steps:
       - uses: actions/checkout@v4
@@ -152,9 +146,9 @@ jobs:
 
   PeerAuthentication:
     runs-on: ubuntu-latest
-    needs: wait-until-build-succeeds
+    needs: [export-info, wait-until-build-succeeds]
     env:
-      MANAGER_IMAGE: ${{ needs.wait-until-build-succeeds.outputs.image-name }}
+      MANAGER_IMAGE: ${{ needs.export-info.outputs.image-name }}
 
     steps:
       - uses: actions/checkout@v4
@@ -200,10 +194,10 @@ jobs:
           kubectl get peerauthentications.security.istio.io -A -o yaml
 
   backend-switching:
-    needs: wait-until-build-succeeds
+    needs: [export-info, wait-until-build-succeeds]
     if: github.event_name == 'push'
     uses: "./.github/workflows/e2e-backend-switching-reuseable.yml"
     with:
-      eventing-manager-image: ${{ needs.wait-until-build-succeeds.outputs.image-name }}
+      eventing-manager-image: ${{ needs.export-info.outputs.image-name }}
       cluster-name-prefix: "ghem-"
     secrets: inherit

.github/workflows/wait-build-reusable.yml

@@ -0,0 +1,53 @@
+name: Backend-switching-tests-gardener (reusable)
+
+on:
+  workflow_call:
+    inputs:
+      repository:
+        description: Full name of repository (<owner>/<name>).
+        required: true
+        type: string
+      git_ref:
+        description: Git reference against which the check will be retrieved. Could be commit SHA, tag or branch name.
+        required: true
+        type: string
+      git_check_run_name:
+        description: Name of the Git check to wait for.
+        required: true
+        type: string
+
+jobs:
+  wait-for-build-job:
+    name: Wait for build job
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout eventing-tools
+        uses: actions/checkout@v4
+        with:
+          repository: 'kyma-project/eventing-tools'
+          path: 'kyma-project/eventing-tools'
+          ref: main
+          sparse-checkout: 'scripts/wait-for-commit-check'
+
+      - name: Setup python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+          cache: 'pip'
+
+      - name: Install requirements
+        run: |
+          pip install -r $GITHUB_WORKSPACE/kyma-project/eventing-tools/scripts/wait-for-commit-check/requirements.txt
+
+      - name: Wait for build job
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          REPOSITORY_FULL_NAME: ${{ inputs.repository }}
+          GIT_REF: "${{ inputs.git_ref }}"
+          # The re-usable image-builder workflow from neighbors appends the "Build image" suffix to the check run name.
+          GIT_CHECK_RUN_NAME: "${{ inputs.git_check_run_name }}"
+          INTERVAL: 60
+          TIMEOUT: 900
+        run: |
+          python $GITHUB_WORKSPACE/kyma-project/eventing-tools/scripts/wait-for-commit-check/run.py